[root@localhost ~]# cd /etc/sysconfig/network-scripts [root@localhost network-scripts]# ls ifcfg-ens33 ifdown-ppp ifup-ib ifup-Team ifcfg-lo ifdown-routes ifup-ippp ifup-TeamPort ifdown ifdown-sit ifup-ipv6 ifup-tunnel ifdown-bnep ifdown-Team ifup-isdn ifup-wireless ifdown-eth ifdown-TeamPort ifup-plip init.ipv6-global ifdown-ib ifdown-tunnel ifup-plusb network-functions ifdown-ippp ifup ifup-post network-functions-ipv6 ifdown-ipv6 ifup-aliases ifup-ppp ifdown-isdn ifup-bnep ifup-routes ifdown-post ifup-eth ifup-sit [root@localhost network-scripts]# vim ifcfg-ens33 [root@localhost network-scripts]# systemctl restart network [root@localhost network-scripts]# ping www.baidu.com PING www.a.shifen.com (61.135.169.125) 56(84) bytes of data. 64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=1 ttl=55 time=25.0 ms 64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=2 ttl=55 time=25.0 ms 64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=3 ttl=55 time=25.0 ms 64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=4 ttl=55 time=25.0 ms 64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=5 ttl=55 time=24.5 ms ^C --- www.a.shifen.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 13035ms
https://blog.csdn.net/rzrenyu/article/details/78469462
原文：https://www.cnblogs.com/yanxiatingyu/p/9782681.html